Yes you can Adjust the torsion bar to raise it. I did this on my 1 ton Chevy to raise the front end. I had an alignment right after and it has worked great ever since.
Good info about raising front end by adjusting torsion bars.www.duramaxforum.com/forum/04-5-05-lly-performance-parts-discussion/4491-torsion-bar-adjustment.html
A 2WD Tahoe does not have torsion adjustment bolts, it uses front coil springs and not torsion bars.
you may want to get them checked for breakage. they shouldn't be sagging that much. new ones would bring the front up easily...
Get under the truck safely and you will see a bolt head sticking down near the front of torsion bar on the adjuster; simply adjust both sides EQUALLY. If you jack it up too much, it makes the ride rough and is hard on ball joints. Make sure you get your front end aligned after you do anything with the torsion bars.
Take the truck to your local Chevy dealer and have them adjust the torsion bars to lift the front and then do a realignment. About 100 bucks. New torsion bar keys are not needed.
To lift the front of a Ram you have to replace the springs, or add spring spacers.
To adjust the torsion bars on a 2007 Silverado, first, raise the front of the vehicle and secure it on jack stands. Locate the torsion bar adjustment bolts on the lower control arms; these are typically near the front of the vehicle. Use a wrench to turn the adjustment bolts clockwise to raise the front end or counterclockwise to lower it, making small adjustments and checking the height as you go. Always ensure that both sides are adjusted evenly for proper alignment and handling.
On a 2001 Dodge Dakota Sport 4x4, the torsion bar adjustment is located on the front suspension system. You will find the adjustment bolts on the torsion bar crossmember, which is situated beneath the vehicle, near the front of the frame. To adjust the torsion bars, you'll need to use a socket wrench to turn the bolts, which will raise or lower the front suspension height. Always ensure the vehicle is securely supported before making any adjustments.
I own a 1989 dodge Dakota and it has torsion bars that can be raised and lowered. Just follow the torsion bars from the front to the back and look at where they stop there should be a 7/8 bolt that you can turn clockwise to raise the truck and counter clockwise to lower it
On the transmission crossmember there is a tensioner that works by adjusting the bolt in and out take both bolts out an equal distance.
Instead of using coil springs on the front suspension torsion bars are used from the lower control arms to the frame ( my 1995 Ford Explorer 4x4 has torsion bars , my dads 73 Dodge Coronet had torsion bars ) If you look at a lower front suspension that has torsion bars you will see the torsion bars going from the lower control arms rearward
If you remove them,you will be sitting on your bump stops. You should be able to adjust them and get the drop you want.